EP1171101B1 - Verfahren zur herstellung einer wasserunlöslichen amorphen retardmatrix - Google Patents

Verfahren zur herstellung einer wasserunlöslichen amorphen retardmatrix Download PDF

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Publication number
EP1171101B1
EP1171101B1 EP00927010A EP00927010A EP1171101B1 EP 1171101 B1 EP1171101 B1 EP 1171101B1 EP 00927010 A EP00927010 A EP 00927010A EP 00927010 A EP00927010 A EP 00927010A EP 1171101 B1 EP1171101 B1 EP 1171101B1
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EP
European Patent Office
Prior art keywords
matrix
starch
release
dosage form
active agent
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP00927010A
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German (de)
English (en)
French (fr)
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EP1171101A1 (de
Inventor
Hubert Rein
Klaus-Jürgen Steffens
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Euro Celtique SA
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Euro Celtique SA
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Filing date
Publication date
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Priority to EP07103714A priority Critical patent/EP1839651A1/de
Publication of EP1171101A1 publication Critical patent/EP1171101A1/de
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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K47/00—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient
    • A61K47/30—Macromolecular organic or inorganic compounds, e.g. inorganic polyphosphates
    • A61K47/36—Polysaccharides; Derivatives thereof, e.g. gums, starch, alginate, dextrin, hyaluronic acid, chitosan, inulin, agar or pectin
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K9/00—Medicinal preparations characterised by special physical form
    • A61K9/20—Pills, tablets, discs, rods
    • A61K9/2004—Excipients; Inactive ingredients
    • A61K9/2022—Organic macromolecular compounds
    • A61K9/205—Polysaccharides, e.g. alginate, gums; Cyclodextrin
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K9/00—Medicinal preparations characterised by special physical form
    • A61K9/14—Particulate form, e.g. powders, Processes for size reducing of pure drugs or the resulting products, Pure drug nanoparticles
    • A61K9/16—Agglomerates; Granulates; Microbeadlets ; Microspheres; Pellets; Solid products obtained by spray drying, spray freeze drying, spray congealing,(multiple) emulsion solvent evaporation or extraction
    • A61K9/1605—Excipients; Inactive ingredients
    • A61K9/1629—Organic macromolecular compounds
    • A61K9/1652—Polysaccharides, e.g. alginate, cellulose derivatives; Cyclodextrin
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K9/00—Medicinal preparations characterised by special physical form
    • A61K9/14—Particulate form, e.g. powders, Processes for size reducing of pure drugs or the resulting products, Pure drug nanoparticles
    • A61K9/16—Agglomerates; Granulates; Microbeadlets ; Microspheres; Pellets; Solid products obtained by spray drying, spray freeze drying, spray congealing,(multiple) emulsion solvent evaporation or extraction
    • A61K9/1682—Processes
    • A61K9/1694—Processes resulting in granules or microspheres of the matrix type containing more than 5% of excipient
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K9/00—Medicinal preparations characterised by special physical form
    • A61K9/20—Pills, tablets, discs, rods
    • A61K9/2004—Excipients; Inactive ingredients
    • A61K9/2022—Organic macromolecular compounds
    • A61K9/205—Polysaccharides, e.g. alginate, gums; Cyclodextrin
    • A61K9/2059—Starch, including chemically or physically modified derivatives; Amylose; Amylopectin; Dextrin
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K9/00—Medicinal preparations characterised by special physical form
    • A61K9/20—Pills, tablets, discs, rods
    • A61K9/2095—Tabletting processes
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P25/00—Drugs for disorders of the nervous system
    • A61P25/26—Psychostimulants, e.g. nicotine, cocaine

Definitions

  • the invention relates to a process for the preparation of pharmaceutical forms or precursors thereof by means of extrusion according to claim 1.
  • the invention further relates to a medicament form producible by means of extrusion processes according to claim 8.
  • Extrusion is a widely used process for the modification of polysaccharides, especially starches, especially in the adhesives industry or plastics processing. From food technology, extrusion is known for the preparation of starchy preparations, such as noodles, the so-called peanut flips or various sweets. However, in all of these products, the manufacturing conditions are chosen to produce foamed, so-called popped products.
  • extrusion is used to process waxes, fatty alcohols, fats and various thermoplastics and thermosets.
  • extruded matrices of various plastic compounds are described in EP-A2-0 240 904, EP-A2-0 240 906 and EP-A2-0 358 105.
  • the processing of starch-containing mixtures into pharmaceutical products (capsule casings) by means of an injection molding process is described EP-B2-0 118 240. It is little known in this context how the polysaccharides used are changed during extrusion.
  • EP-A-0 580 860 discloses extrusion processes for the preparation of solid dispersions of an active ingredient in a polymer carrier.
  • starch and starch derivatives are also generally mentioned.
  • the method described there is not suitable.
  • the dosage forms that are taken orally are by far the most important.
  • the advantage of sustained-release forms lies in a very uniform concentration of active substance in the blood, which leads to a long-lasting effect and too few side effects.
  • the so-called matrix form is of major importance.
  • matrix is meant a shaped body, for example a tablet or a dragee, of indifferent auxiliaries from which the active ingredients are released in a controlled manner in the gastrointestinal tract.
  • the release of the active ingredients is generally done partly by diffusion, partly by the slow degradation of the matrix.
  • such matrices are made from synthetic polymers such as polyacrylate or polyethylene.
  • extrusion processes for the production of sustained release forms of synthetic base materials are known.
  • a principal disadvantage of the drug forms previously produced by extrusion processes lies in the use of drug carriers such as plastics, waxes or fatty alcohols. These non-biodegradable and partially environmentally harmful auxiliaries, such as residual monomers in the polymers used, are still essential for drug-prepared dosage forms that allow a controlled and slow drug release. Moreover, no extrusion process is known for the preparation of drug forms which permit rapid drug release.
  • a process is now proposed for the production of pharmaceutical forms or precursors thereof by extrusion, which is characterized in that the pharmaceutical form has a matrix substantially containing the active substance content, which is formed in its essential properties by the extrusion, and starch and / or derivative thereof and / or a complex thereof as a constituent of the matrix and at least one pharmaceutically active substance.
  • the drug release of the dosage form is regulated by varying the extrusion process parameters such as temperature, nozzle geometry and / or extrusion rate.
  • the matrix of the dosage form produced according to the invention is amorphous.
  • the invention relates to a production method in which the dosage form comprises a water-insoluble and preferably swellable matrix.
  • the dosage form produced according to the invention is a sustained-release matrix.
  • a dosage form produced according to the invention which has an active substance release substantially following the lapidus function and particularly preferably a delivery of active substance which can be adjusted over 24 h or longer.
  • Another essential object of the invention is to provide a pharmaceutical form which essentially manages without non-biodegradable ingredients.
  • a pharmaceutical form which contains a matrix essentially containing the active substance content, which is formed by extrusion in its essential properties, and starch and / or a derivative thereof and / or a complex thereof as an essential constituent of the matrix and at least a pharmaceutically active substance.
  • an amorphous matrix of the crystalline or partially crystalline starch or derivatives thereof is generated.
  • the extrusion conditions such as temperature, nozzle geometry and extrusion rate are of great importance in the reproducible production of drug forms based on the extrusion of polysaccharides and derivatives thereof.
  • native starch can be completely plasticized or vitrified under suitable extrusion conditions, so that homogeneous plastic-like shaped bodies are formed.
  • the formulations used in the process according to the invention consist of a mixture of starch and / or starch derivatives, various types of starch being suitable. Furthermore, the mixture includes at least one pharmaceutically active substance in amounts of up to 50% and preferably up to 30% based on the total weight of the formulation, and may also include other other substances.
  • the thoroughly mixed dry formulation should be added to water in concentrations of up to 15%. When using a positive-displacement extruder, a lower water content than 15% is sufficient.
  • the resulting premix should preferably be sieved lump-free to a ensure perfect conveyance through the plug screw.
  • the starting and cleaning of the extruder can be done, for example, with corn semolina.
  • the temperature at the outlet of the extruder under normal pressure should not exceed 100 ° C, since at temperatures above 100 ° C, the formation of a non-porous matrix is likely to be very difficult.
  • the total energy to be supplied to the process in the form of shear forces, temperature, heat or pressure should be as constant as possible and sufficient to reach the glass transition.
  • the optimum screw speed and nozzle geometry can be matched to the mixture of carrier according to the invention and water.
  • Varying the extrusion process parameters enables the preparation of dosage forms according to the method of the invention which have a regulated release of active ingredient.
  • "regulated" means that by the extrusion process according to the invention both rapidly releasing drug forms as well as delayed-release drug forms, so-called. Retard drug forms with release times of up to 24 hours or longer can be produced.
  • the processing temperature in relation to the regulation of the release of active ingredient is also of great importance. Fast-release dosage forms are obtained, for example, by extrusion below the gelatinization temperature of the particular polysaccharides used.
  • sustained-release dosage forms can be obtained by partial to complete vitrification, ie by transfer to the amorphous state, of the polysaccharide-containing mixture under suitable extrusion conditions getting produced.
  • an amorphous matrix of amorphous starch or derivatives thereof or of mixtures of these components prepared by the process according to the invention is substantially not water-soluble, but is preferably swellable and water-insoluble.
  • the pharmaceutically active substance or the pharmaceutically active substances can be present in the matrix in dissolved, solid or liquid form.
  • starches which can be used in the production process according to the invention are tapioca starch, wheat starch, potato starch, Starch 1500® (partially pregelatinized / pregelatinized corn starch marketed by Colorcon), Waxylis® (waxy maize starch from Roquette), Eurylon 7® ( Amylomais starch from Roquette), corn starch, acetyl starch.
  • a reduction in drug release may be achieved by forming stoichiometric or unstoichiometric complexes, such as e.g. Iodine-starch complex, Miltefosine-amylose complex can be achieved.
  • stoichiometric or unstoichiometric complexes such as e.g. Iodine-starch complex, Miltefosine-amylose complex can be achieved.
  • the release of the incorporated active ingredients may be affected by employing suitable mixtures of the components of the matrix, preferably by using mixtures of different starches and / or derivatives thereof. Further factors which may additionally influence the release of active substance are the surface of the shaped body of the drug form and its particle size or the distribution of the active ingredient or of the active substances within the particle.
  • the dosage forms prepared by the process according to the invention are used for the preparation of monoblock medicaments in which the shaping of the extrudate takes place by means of a suitable arrangement on the extruder die, similar to the soap production.
  • the process according to the invention enables the production and use of monobloc molds. This creates an extrudate, which is glazed only on the surface and inside the drug-carrier mixture encloses in the same state.
  • all excipients known for the preparation of solid forms can be used.
  • the drying of the drug form can be done alone on the resulting friction heat, so that no final drying step is necessary.
  • all process steps such as dosing, wetting, mixing, extruding and molding, may be continuous.
  • the process according to the invention can thus combine the mixing, granulating and drying process, for which no additional energy has to be expended, in one apparatus.
  • the number of possible incompatibilities is also reduced, since the dosage form comprises, for example, only one carrier, preferably starch or a derivative thereof, and one pharmaceutically active substance.
  • the matrix produced by the process according to the invention also prevents possible, unwanted segregation.
  • the batch size was between 350 and 600 grams in the trials. Active ingredient and starch were thoroughly mixed in a Stephan mixer, moistened with 15% water and sieved this mixture lump-free.
  • Temperatures of about 65 ° C in the inlet section of the extruder, of about 80 ° C in the screw section and of about 98 ° C at the nozzle have proved to be a suitable choice of temperature for carrying out the method according to the invention.
  • the detection of the transition of the crystalline or partially crystalline structures of the polysaccharides into amorphous or partially amorphous structures can be detected by various methods.
  • DSC differential thermal analysis
  • the transition from the crystalline or partially crystalline to the amorphous or partially amorphous state can also be detected by means of X-ray diffractometry.
  • a sample consisting of 80% potato starch and 20% caffeine used.
  • the X-ray diffractogram of the potato starch caffeine premix shown in FIG. 2 shows the signals of the crystalline portion of the starch in the region of 20 °.
  • the X-ray diffractogram of the corresponding extrudate no longer shows any signals which indicate a crystalline proportion of the starch.
  • the rate of drug release can also be regulated by the type of polysaccharide or polysaccharide mixture.
  • a premix consisting of potato starch and 10% caffeine was used for the quantitative study of drug release.
  • the graph shown in Figure 5 shows that the extrudate produced by the process of the invention effects drug release over a period of 24 hours.
  • the duration and the course of the total active substance release can be regulated.
  • Very long drug release times such as 24 hours in the previous example, are to be considered advantageous in terms of developing a new retarding principle, since one has "reserves" for extremely well water-soluble drugs.
  • the release of active ingredient can be, as already stated several times, selectively influenced by the polysaccharides used or corresponding derivatives and mixtures thereof, by the addition of appropriate excipients and / or by the extrusion process parameters.
  • the process according to the invention also makes it possible to achieve faster drug release times.
  • the table below shows, by way of example, that the change in process parameters, such as, for example, incomplete vitrification, allows the drug release times to be regulated over a wide range.
  • Table ⁇ / b> polysaccharide active substance drug concentration Period during which 50% of the active substance is released [min] Period in which active substance is theoretically released [h] tapioca starch caffeine 10% (50 mg) 240 16 tapioca starch caffeine 10% (50 mg) 120 8th corn starch caffeine 30% (50 mg) 195 13 corn starch caffeine 30% (50 mg) 55 3.7

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  • Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Pharmacology & Pharmacy (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Epidemiology (AREA)
  • Bioinformatics & Cheminformatics (AREA)
  • Engineering & Computer Science (AREA)
  • Neurology (AREA)
  • Organic Chemistry (AREA)
  • Psychiatry (AREA)
  • Neurosurgery (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Biomedical Technology (AREA)
  • Inorganic Chemistry (AREA)
  • Medicinal Preparation (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
  • Compounds Of Unknown Constitution (AREA)
  • Medicines Containing Material From Animals Or Micro-Organisms (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
EP00927010A 1999-04-22 2000-04-20 Verfahren zur herstellung einer wasserunlöslichen amorphen retardmatrix Expired - Lifetime EP1171101B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP07103714A EP1839651A1 (de) 1999-04-22 2000-04-20 Verfahren zur Herstellung einer Wasserunlösslichen amorphen oder teilamorphen Retardmatrix

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19918325A DE19918325A1 (de) 1999-04-22 1999-04-22 Verfahren zur Herstellung von Arzneiformen mit regulierter Wirkstofffreisetzung mittels Extrusion
DE19918325 1999-04-22
PCT/EP2000/003612 WO2000064415A1 (de) 1999-04-22 2000-04-20 Verfahren zur herstellung einer wasserunlöslichen amorphen oder teilamorphen retardmatrix

Related Child Applications (1)

Application Number Title Priority Date Filing Date
EP07103714A Division EP1839651A1 (de) 1999-04-22 2000-04-20 Verfahren zur Herstellung einer Wasserunlösslichen amorphen oder teilamorphen Retardmatrix

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Publication Number Publication Date
EP1171101A1 EP1171101A1 (de) 2002-01-16
EP1171101B1 true EP1171101B1 (de) 2007-03-14

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EP00927010A Expired - Lifetime EP1171101B1 (de) 1999-04-22 2000-04-20 Verfahren zur herstellung einer wasserunlöslichen amorphen retardmatrix
EP07103714A Withdrawn EP1839651A1 (de) 1999-04-22 2000-04-20 Verfahren zur Herstellung einer Wasserunlösslichen amorphen oder teilamorphen Retardmatrix

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EP07103714A Withdrawn EP1839651A1 (de) 1999-04-22 2000-04-20 Verfahren zur Herstellung einer Wasserunlösslichen amorphen oder teilamorphen Retardmatrix

Country Status (18)

Country Link
US (1) US8557286B1 (enExample)
EP (2) EP1171101B1 (enExample)
JP (2) JP4575599B2 (enExample)
KR (1) KR100511113B1 (enExample)
CN (1) CN1214783C (enExample)
AT (1) ATE356617T1 (enExample)
AU (1) AU763609B2 (enExample)
BR (1) BR0009927B1 (enExample)
CA (1) CA2372025C (enExample)
CY (1) CY1106478T1 (enExample)
DE (3) DE19918325A1 (enExample)
DK (1) DK1171101T3 (enExample)
ES (1) ES2284495T3 (enExample)
HU (1) HU227001B1 (enExample)
IL (1) IL145755A0 (enExample)
PT (1) PT1171101E (enExample)
RU (1) RU2208436C2 (enExample)
WO (1) WO2000064415A1 (enExample)

Cited By (1)

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US6375957B1 (en) 1997-12-22 2002-04-23 Euro-Celtique, S.A. Opioid agonist/opioid antagonist/acetaminophen combinations
JP2001526228A (ja) 1997-12-22 2001-12-18 ユーロ−セルティーク，エス．エイ． オピオイド作動薬／拮抗薬の併用
DE19918325A1 (de) * 1999-04-22 2000-10-26 Euro Celtique Sa Verfahren zur Herstellung von Arzneiformen mit regulierter Wirkstofffreisetzung mittels Extrusion
CN1525851A (zh) 2001-05-11 2004-09-01 ������ҩ�����޹�˾ 抗滥用阿片样物质控释剂型
AU2002342755A1 (en) * 2001-09-26 2003-04-14 Klaus-Jurgen Steffens Method and device for producing granulates that comprise at least one pharmaceutical active substance
EP1492505B1 (en) 2002-04-05 2015-06-03 Euro-Celtique S.A. Pharmaceutical preparation containing oxycodone and naloxone
EP1479381A1 (en) * 2003-05-19 2004-11-24 Euro-Celtique S.A. Pharmaceutical dosage form comprising a solid solution
EP1604666A1 (en) 2004-06-08 2005-12-14 Euro-Celtique S.A. Opioids for the treatment of the Chronic Obstructive Pulmonary Disease (COPD)
EP1604667A1 (en) 2004-06-08 2005-12-14 Euro-Celtique S.A. Opioids for the treatment of the restless leg syndrome
US8367105B2 (en) 2004-11-10 2013-02-05 Teva Pharmaceutical Industries, Ltd. Compressed solid dosage form manufacturing process well-suited for use with drugs of low aqueous solubility and compressed solid dosage forms made thereby
EP1702558A1 (en) 2005-02-28 2006-09-20 Euro-Celtique S.A. Method and device for the assessment of bowel function
DE102007028869A1 (de) 2007-06-22 2008-12-24 Ratiopharm Gmbh Verfahren zur Herstellung eines Arzneimittels enthaltend Tadalafil
MY152279A (en) 2009-03-10 2014-09-15 Euro Celtique Sa Immediate release pharmaceutical compositions comprising oxycodone and naloxone
DE102011015370A1 (de) * 2011-03-29 2012-10-04 Emodys Gmbh Matrix für eine orale Darreichungsform, Verfahren zu deren Herstellung sowie Verwendung derselben
CN104023710A (zh) * 2011-12-21 2014-09-03 拜耳知识产权有限责任公司 包含无定形艾默德斯的制剂
US10071089B2 (en) 2013-07-23 2018-09-11 Euro-Celtique S.A. Combination of oxycodone and naloxone for use in treating pain in patients suffering from pain and a disease resulting in intestinal dysbiosis and/or increasing the risk for intestinal bacterial translocation
EP3459527B1 (en) 2017-09-20 2022-11-23 Tillotts Pharma Ag Method for preparing a solid dosage form comprising antibodies by wet granulation, extrusion and spheronization

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